<!DOCTYPE html>
<html lang="en">
<head>
<%@ page language="java" contentType="text/html; charset=utf-8"%>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>在此处插入标题</title>
</head>
<body>
<%
 
Cookie c=new Cookie("visitnum","1");
c.setMaxAge(0);
response.addCookie(c);
%>
</body>
</html>